Veterinary instrument



Patented June 2,1891.

(No Model.)

J. RUBY. VETERINARY INSTRUMENT.

UN 1TB n STATES PATENT OFFICE.

JOSEPlfRUBY, OF lilECKLEYSVlLliE, MARYLAND.

VETHERINARY INSTRUMENT.

SPECFICATION forming part of Letters Patent No. 458,508, dated June 2, 1891.

Application filed March 18, 1891. Serial No. 385,527. (No model.)

To all whom it 772,503/ concern.-

Be it known that I, JOSEPH RUBY, a citizen of the United States, residing at Beckleysville, in the county of'Baltimore and State of Maryland, have invented a new and useful Veterinary Instrument, of which thefollowing is a specification.

The invention relates to improvements in veterinary instruments.

The object of the present invention is to provide a. veterinary surgical instrument adapted to conveniently and effectively administer medicines to animals wit-hout liability of injuring the mouth or th roat of an animal or being bit by the same.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described7 illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of an instrument constructed in accordance with this invention, a powder being shown in proper position preparatory to injection. Fig. 2 is a longitudinal sectional view. Fig. 3 is a detail view showing more clearly the construction of the springclamp at the end of the barrel.

Referring tothe accompanying drawings, 1 designates a pistol, consisting of a barrel 2, a handle 3, and firing mechanism of the ordinary construction. Arranged within the barrel near the outer ends of the same is a spiral spring 4, which has one end bearing against a shoulder 5, and the outer end of the spring engages a plunger G, Vwhich is adapted to expel a powder or a ball and throw the same down the neel;v of an animal, and which is connected by a rod 7 with the hammer S of the pistol, whereby when the hammer is cocked the spiral spring l is compressed and the plunger is drawn within the barrel and is adapted to be thrown forward by the spring when the trigger 9 is pulled. The spiral spring 4: is sufficiently strong to discharge the pistol and throw the powder, and the mainspring 10 may be omitted, if desired; but in cases where the medicine is sticky andis apt to cling to the pist-ol and is to be administered to cattle it is often advantageous to employ a mainspring. The rear end of the rod 7 is provided with a hook 11 and engages an eye 13 of a pin 13, arranged in an opening of the hammer and being threaded and provided with a nut 11, arranged at the back of the hammer and engaging the same and securing the pin thereto.

The medicine to be administered, when a powder, is wrapped in tissue paper, and when a liquid is put up in the shape of balls in a soluble shell and is placed between the elastic piece 15, which is centrally secured to the plunger and has its ends secured to curved spring-arms 16, which are preferably composed of plates of sheet metal, and the ends of the rubber are secured between the ends of the same. The arms 16 are connected with the barrel by springs 17, which have their inner ends secured to the barrel and their outer ends secured tothe arms. As the plunger is drawn inward by the cooking of the pistol the spring-arms are brought together and they clamp the medicine until the plu nger is released at the tiring of the pistol. The mouth of the animal is opened and the tongue pulled forward and turned to one side in the usual manner, and then the instrument is inserted until the medicine is at the root of the tongue, and it will be found most convenient to hold the pistol horizontally with the handle turned upward, and by moving the hand slightly to one side the mouth is exposed to full view. r

In order to enable the mainspring of the pistol to be adjusted and removed from engagement with the hammer without removing the handle-plates, a metal block 1S is provided and is swiveled to a screw 19, having its head arranged outside the handle and adapted to be readily turned to raise and lower the spring and adgust its 1Aension, and the metal block 1S is provided with a recess 20, which receives the lower rear end of the spring. f

1. A veterinaryinstrument comprising the pistol, the plunger arranged within the bar rel, the rod connecting the plunger' and the hammer, the curved arms arranged at the end of the barrel, and the elastic piece 15, centrally secured to the plunger and having its ends connected to the arms, substantially as described.

2. Aveterinary instrument comprising the TOO pistol having its barrel provided with the shoulder 5, the spiral spring arranged Within the barrel and having its inner end bearing against the shoulder, the plunger arranged Within the barrel and being engaged with the outer end of the spring, the rod connecting the plunger and the hammer, and the springarms secured to the outer end of the barrel and adapted to hold medicine, substantially as described.

3. In a veterinaryinstrument, the combinal tion of the pistol, the screw 20, arranged at the butt of the pistol, and the metal block provided with a recess to receive the rear end of the mainspring and secured to the screw, substantially as described.

4. The barrel and the plunger therein, combined withv the elastic piece l5, centrally secured tothe plunger, the curved spring-arms 1G, to which the ends of the elastic piece are secured, and the springs 17, attached to the barrel and connected to the ends of the arms 16, substantially as described.

5. The barrel and the plunger therein, combined with the elastic piece 15, centrally secured to the lplunger, and the curved springarms 16, said arms being composed of plates 0f sheet rnetal` which are flexibly connected to the barrel, substantially as described.

In testimony that I claim the foregoing as my own I have hereto nflixed my signature in presence of two Witnesses.

- JOSEPH RUBY.

fitnessesz KRANK I. DUNCAN, JOHN W. SHANKLIN. 

